EP1341368A2 - Appareil de traitement d'image - Google Patents

Appareil de traitement d'image Download PDF

Info

Publication number
EP1341368A2
EP1341368A2 EP03251133A EP03251133A EP1341368A2 EP 1341368 A2 EP1341368 A2 EP 1341368A2 EP 03251133 A EP03251133 A EP 03251133A EP 03251133 A EP03251133 A EP 03251133A EP 1341368 A2 EP1341368 A2 EP 1341368A2
Authority
EP
European Patent Office
Prior art keywords
data
image
image data
gradation
resolution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03251133A
Other languages
German (de)
English (en)
Other versions
EP1341368A3 (fr
Inventor
Takayuki c/o Konica Corporation Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of EP1341368A2 publication Critical patent/EP1341368A2/fr
Publication of EP1341368A3 publication Critical patent/EP1341368A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/333—Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307—Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33314—Mode signalling or mode changing; Handshaking therefor of a particular mode of reading or reproducing mode
    • H04N2201/33328—Resolution

Definitions

  • the image processing apparatus 1 is equipped with image reading section 17 (see Fig. 1) that reads image data, and is connected with facsimile 2 through network N.
  • image processing apparatus 1 binarizes images read from image reading section 17 and generates image data, then, calculates the reduction rate for image data based on image resolution data showing resolution of image data and on facsimile resolution data showing resolution of facsimile 2, and converts image data with the calculated reduction rate to generate reduced data.
  • image processing apparatus 1 has facsimile communication function to transmit reduced data generated in image data reduction processing to facsimile 2 through network N.
  • the control section 11 is composed of CPU (Central Processing Unit) and others, and it reads system programs stored in the storage section 16 and various control programs to develop them in RAM 15, and controls operations of each section intensively according to the control program. Further, the control section 11 conducts various types of processing in accordance with the program developed in RAM 15, and causes the results of the processing to be stored in RAM 15 temporarily and to be displayed on the display section 13. To be concrete, the control section 11 reads image data reduction processing program from the storage section 16, and conducts image data reduction processing which will be described later. Further, in the image data reduction processing, it transmits to facsimile 2 the reduction data generated based on resolutions of both images and facsimile 2, through network N.
  • CPU Central Processing Unit
  • the display section 13 is composed of LCD (Liquid Crystal Display) and CRT (Cathode Ray Tube), and displays thereon input instructions coming from the input section 12 and data, in accordance with instructions of display signals inputted from the control section 11.
  • LCD Liquid Crystal Display
  • CRT Cathode Ray Tube
  • control section 11 In the image data reduction processing, the control section 11 generates image data by binarizing images read, and calculates image resolution data to calculate the reduction rate based on facsimile resolution data and the calculated image resolution data. Then, the control section 11 calculates the number of pixels of image data necessary to generate one pixel of reduced data based on the calculated reduction rate, and divides image data into a matrix calculated based on the calculated number of pixels.
  • the present invention makes it possible to preserve an original line-work of image data and to keep the gradation when reducing the image data. Further, since image data are binarized in the invention, it is possible to save the memory to be used, compared with the image processing that employs multi-valuing, and thereby to provide an inexpensive image processing apparatus, and it is further possible to reduce an amount of data in the case of transmitting image data to an outer apparatus, and thereby to increase transmission speed. In addition, since reduced data and image data before reduction are selected to be transmitted, according to the resolution of an outer apparatus to which the image data are outputted, image data before reduction can be outputted to the other party having high resolution, which makes it possible to provide image data having less deterioration of image quality.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
EP03251133A 2002-02-28 2003-02-25 Appareil de traitement d'image Withdrawn EP1341368A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002054594 2002-02-28
JP2002054594A JP2003259113A (ja) 2002-02-28 2002-02-28 画像処理装置

Publications (2)

Publication Number Publication Date
EP1341368A2 true EP1341368A2 (fr) 2003-09-03
EP1341368A3 EP1341368A3 (fr) 2005-09-07

Family

ID=27678572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03251133A Withdrawn EP1341368A3 (fr) 2002-02-28 2003-02-25 Appareil de traitement d'image

Country Status (3)

Country Link
US (1) US20030160976A1 (fr)
EP (1) EP1341368A3 (fr)
JP (1) JP2003259113A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006309622A (ja) * 2005-04-28 2006-11-09 Ricoh Co Ltd 画像処理装置、画像処理方法、画像処理プログラムおよび記録媒体
JP5293482B2 (ja) * 2009-07-29 2013-09-18 株式会社リコー 画像処理装置、画像処理方法、及び、情報記録媒体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4935822A (en) * 1988-06-03 1990-06-19 Nippon Seimitsu Kogyo Kabushiki Kaisha Method for image reduction processing according to criterion points

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6683702B1 (en) * 1999-07-07 2004-01-27 Xerox Corporation Compact-dot reproduction of scanned halftone screens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4935822A (en) * 1988-06-03 1990-06-19 Nippon Seimitsu Kogyo Kabushiki Kaisha Method for image reduction processing according to criterion points

Also Published As

Publication number Publication date
US20030160976A1 (en) 2003-08-28
EP1341368A3 (fr) 2005-09-07
JP2003259113A (ja) 2003-09-12

Similar Documents

Publication Publication Date Title
US7346215B2 (en) Apparatus and method for capturing a document
Urban Review of standards for electronic imaging for facsimile systems
Howard et al. The emerging JBIG2 standard
JP4773678B2 (ja) 文書システム
EP0738070B1 (fr) Procédé et appareil de traitement d'images
US20100182637A1 (en) Image forming apparatus, control method, and program
US5331426A (en) Image encoding method
US8035862B2 (en) Fast method for fax encoded data conversion
EP0415513A2 (fr) Système de réduction d'image
EP0613290B1 (fr) Procédé et appareil pour la compression de données d'images binaires
US5271072A (en) Image reduction of binary images using filtering processing
JPS6079875A (ja) フアクシミリ通信方式
US5241403A (en) Image communication system including means for storing function information of destination receiving machine
EP1341368A2 (fr) Appareil de traitement d'image
JP2756371B2 (ja) 画像処理装置
JP3085932B2 (ja) マスクを用いた予測映像発生装置及びその装置を用いた２進映像の圧縮、伝送及び復元装置
US5341221A (en) Facsimile apparatus
KR100750151B1 (ko) 팩스 데이터의 전송방법 및 장치
EP0362590B1 (fr) Système facsimilé
JPS63182973A (ja) フアクシミリ装置の擬似中間調画像伝送方法
KR0159418B1 (ko) 팩시밀리시스템에 있어서 전송화질 개선장치 및 방법
JP2842781B2 (ja) 画像情報処理方式
JP3220217B2 (ja) ファクシミリ装置
US20020097445A1 (en) Facsimile gateway device
JPH09233117A (ja) メールシステム

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060308